Serial-device problems
This topic provides suggested actions to take to solve problems with serial devices.
About this task
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 4, “Parts listing, Types 7145, 7146, 7143, and 7191,” on page 81 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
The number of serial ports that
are identified by the operating
system is less than the number
of installed serial ports.
1. Make sure that:
v Each port is assigned a unique address in the Setup utility and none of the
serial ports is disabled.
v The serial-port adapter (if one is present) is seated correctly.
2. Reseat the serial port adapter (see “Removing an adapter” on page 110 and
“Replacing an adapter” on page 111).
3. Replace the serial port adapter.
A serial device does not work.
1. Make sure that:
v The device is compatible with the server.
v The serial port is enabled and is assigned a unique address.
v The device is connected to the correct connector (see “Internal LEDs,
connectors, and jumpers” on page 22).
2. Reseat the following components:
a. Failing serial device
b. Serial cable
c. I/O-board assembly (see “Removing the I/O-board shuttle” on page 143
and “Replacing the I/O-board shuttle” on page 144)
3. Replace the components listed in step 2, one at a time, in the order shown,
restarting the server each time.
ServerGuide problems
This topic provides possible solutions to problems with the ServerGuide program.
About this task
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 4, “Parts listing, Types 7145, 7146, 7143, and 7191,” on page 81 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
The ServerGuide Setup and
Installation CD will not start.
1. Make sure that the server supports the ServerGuide program and has a
startable (bootable) CD or DVD drive.
2. If the startup (boot) sequence settings have been changed, make sure that the
CD or DVD drive is first in the startup sequence.
3. If more than one CD or DVD drive is installed, make sure that only one drive
is set as the primary drive. Start the CD from the primary drive.
Chapter 3. Diagnostics 55
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